Ring binder attachment



I Y 1931-, H. FRANZ, JR 1,806,

RING BINDER ATTACHMENT Filed Aug. 8. 1930 Patented May 19, 1931 UNITED g FATEv ain" FFHCE RING BINDER ATTACHMENT Application filed August 8,

This invention relates to loose-leaf binders and more particularly to loose-leaf binders of the so called ring type in which halfrings or hooks are adapted to close together to constitute binding means and to open out to permit the removal of leaves.

One of the primary objects of my invention is to provide novel means for connecting the binding elements for the leaves to the back of the binder in which the use of stitching is entirely eliminated, the means being so constructed as to form a rigid structure in which all parts can be easily and quickly assembled.

Another important object of my invention is to provide novel means for connecting the leaf binding elements to the back of the book, said means also providing attaching members for the covers of the binder to the back thereof, said members acting to reinforce and strengthen the back.

A further object of my invention is to provide novel means for connecting the base plate of the binder to the back thereof with-V out the use of stitching or adhesives and novel means for connecting the binder casing for the leaf rings with the base plate.

A still further object of my invention is to provide means for connecting the binding elements for the loose-leaves to the cover of the binder which will be durable and efficient in use, one that will be simple and easy to manufacture and one which can be placed upon the market at a reasonable cost.

With these and other objects in view the invention consists in the novel construction, arrangement, and formation of parts, as will be hereinafter more specifically described claimed and illustrated in the accompanying drawings, in which:

Figure l is a fragmentary top plan view showing the novel means employed for connecting the base plate and the covers to the back of the binder, parts being shown broken away and in section.

1930. Serial No. 473,816.

Figure 2 is a fragmentary longitudinal section through a portion of the back of the binder showing the binder casing for the leaf rings in position and illustrating the novel means of connecting the binder casing to the base plate.

Figure 3 is a transverse section through the cover of the binder with the binder casing and its leaf ringsremoved.

Figure 4 is a detailed perspective view illustrating one of the connecting members employed for detachably connecting the binder casing with the base plate.

Referring to the drawings in detail wherein similar reference characters designate corresponding parts throughout the several views the letter A-generally indicates myimproved loose-leaf binder which comprises a back 5 and sides 6 and 7. The back 5 and sides 6 and 7 can be made from any desired flexible material such as leather.

As shownthe inner marginal side edges of the sides 6' and 7 are provided with integral attaching flanges 8.

In accordance with my invention I provide a base plate 10 preferably formed from rigid material such as metal of the desired gage. This base plate 10 is placed against the inner face of the back 5 and the side marginal edges of the back are folded over the base plate 10 as at 11. The base plate. 10 is provided at spaced points with struckup loops 12 which are arranged in longi tudinal alignment. I

The attaching flanges or flaps 8 of the sides 6 and 7 are placed in abuttingengagement with the folded sides 11 of the back 5 and reinforcing strips 13 are placed on the attaching flaps 8 and eXtend longitudinally thereof. As shown the reinforcing strips 13 lie on opposite sides of the loops 12. These reinforcing, strips 13 are preferably formed from thin sheet metal.

Fastening elements 14 are then placed through the base plate 10 the folded portions 11 of the back 5, the attaching flaps 8 of the sides 6 and 7 and the attaching strips 13. These fastening elements 14; are preferably in the nature of rivets or eyelets and the various elements mentioned which the eyelets connect are provided with registering openings through which the eyelets are placed. As the eyelets 14 have been placed in position the ends thereof are up set in a preferred way. 1

If desired the ends of the back 5 can now be folded over the ends of the base plate 10 as at 15. The folded ends can be held in place by a suitable adhesive if desired, but the binder casing 16 also forms meansfor holding the folded'ends 15 in properposition.

The binder casing 16 can be of any preferred character and carries the rings 17 for the loose-leaves (not shown). The bottom plate of said casing 16, however, in accordance with my invention is provided at spaced points with transverse slots 18 for receiving the struck-up loops 12.

In order to detachably connect the binder casing 16 with the cover I provide attaching members 19, which are in the nature of elongated strips. The inner ends of the attaching members can be pointed as of 20 and the outer ends thereof can be provided with manipulating finger pieces 21. These attaching members 19 are passed through the loops 12 in abutting contact with the inner face of the casing 16 and firmly unite the bottom plate with the base plate. As shown the finger piece 21 of the attaching member abuts against the end of the casing 16 when the same is in its full-inserted position.

From the foregoing description it can be seen that I have provided an exceptionally simple and durable means for connecting the binding mechanism for the loose-leaves with the cover of the binder.

Changes in details may be made without departing from the spirit or scope of this invention but what I claim as new, is:

1. In a' loose-leaf binder, a cover including a back and sides, a base plate fitted against the inner face of the back, the marginal. side edges of the back being folded over the base plate, attaching flaps'formed on the inner edges of the sides and fitted against the folded edges of the back, reinforcing strips fitted against the flaps and attaching eyelets extending through the base plate, the folded marginal edges of the back, the attaching flaps and the reinforcing strips and having the ends upset.

2. In a looseleaf binder, a cover including a back and sides, a base plate fitted against the inner face of the back, the marginal side edges of the back being folded over the base plate, attaching flaps formed on the inner edges of the sides and fitted against the folded edges of the back, rein- Wisconsin.

CHARLES H. FRANZ, JR. 

